[INFO] fetching crate special 0.8.1...
[INFO] building special-0.8.1 against try#d5c88c22807925c189328ef9d923c5d2b11a95b8+rustflags=-Zprofile-closures for pr-87066-3
[INFO] extracting crate special 0.8.1 into /workspace/builds/worker-60/source
[INFO] validating manifest of crates.io crate special 0.8.1 on toolchain d5c88c22807925c189328ef9d923c5d2b11a95b8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate special 0.8.1
[INFO] finished tweaking crates.io crate special 0.8.1
[INFO] tweaked toml for crates.io crate special 0.8.1 written to /workspace/builds/worker-60/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded assert v0.7.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e29ca1a10d52a00db5bda00fa407a83f3a70292c472e26f9d4acf1434969a3d7
[INFO] running `Command { std: "docker" "start" "-a" "e29ca1a10d52a00db5bda00fa407a83f3a70292c472e26f9d4acf1434969a3d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e29ca1a10d52a00db5bda00fa407a83f3a70292c472e26f9d4acf1434969a3d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e29ca1a10d52a00db5bda00fa407a83f3a70292c472e26f9d4acf1434969a3d7", kill_on_drop: false }`
[INFO] [stdout] e29ca1a10d52a00db5bda00fa407a83f3a70292c472e26f9d4acf1434969a3d7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Zprofile-closures" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ee73b855e11279cfc136976f3bc1a9ba9fb034cc98f46d26bd4ddffc09ac4e9d
[INFO] running `Command { std: "docker" "start" "-a" "ee73b855e11279cfc136976f3bc1a9ba9fb034cc98f46d26bd4ddffc09ac4e9d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.99
[INFO] [stderr] SG_CR_Eslkdjf: build_script_build, (75b84863966839e5, 8a92c743b00988cf), 0, 0
[INFO] [stderr]    Compiling special v0.8.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: attribute should be applied to a foreign function or static
[INFO] [stdout]   --> src/math.rs:1:1
[INFO] [stdout]    |
[INFO] [stdout] 1  | #![link_name = "m"]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:14:1
[INFO] [stdout]    |
[INFO] [stdout] 14 | mod math;
[INFO] [stdout]    | --------- not a foreign function or static
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] SG_CR_Eslkdjf: special, (dc503287136b3bac, b7a5f665f524c104), 8, 8
[INFO] [stderr] SG_CR_Eslkdjf: special, (99573af71de2a458, 47f793babfa6bd6), 8, 8
[INFO] [stderr] SG_CR_Eslkdjf: special, (e7dbeabaec6021fc, b9dc1f337cc2a4a4), 8, 8
[INFO] [stderr] SG_CR_Eslkdjf: special, (2a8ed6db41361b55, 10cca7a55da25e28), 8, 8
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.10s
[INFO] running `Command { std: "docker" "inspect" "ee73b855e11279cfc136976f3bc1a9ba9fb034cc98f46d26bd4ddffc09ac4e9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee73b855e11279cfc136976f3bc1a9ba9fb034cc98f46d26bd4ddffc09ac4e9d", kill_on_drop: false }`
[INFO] [stdout] ee73b855e11279cfc136976f3bc1a9ba9fb034cc98f46d26bd4ddffc09ac4e9d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Zprofile-closures" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2fe4f701dd309d73918cf37cbce196b3c9d6b4d323ce1d50f1227f8750f9bbc0
[INFO] running `Command { std: "docker" "start" "-a" "2fe4f701dd309d73918cf37cbce196b3c9d6b4d323ce1d50f1227f8750f9bbc0", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] error: failed to create jobserver
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to increase jobserver pipe capacity from 4096 to 8192; jobserver otherwise might deadlock
[INFO] running `Command { std: "docker" "inspect" "2fe4f701dd309d73918cf37cbce196b3c9d6b4d323ce1d50f1227f8750f9bbc0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2fe4f701dd309d73918cf37cbce196b3c9d6b4d323ce1d50f1227f8750f9bbc0", kill_on_drop: false }`
[INFO] [stdout] 2fe4f701dd309d73918cf37cbce196b3c9d6b4d323ce1d50f1227f8750f9bbc0